Internally illuminated photobioreactor using a novel type of light-emitting diode (LED) bar for cultivation of Arthrospira platensis

Yim, Sung-Kun; Ki, Dae‐Won; Doo, Hong-Soo; Kim, Hyuk; Kwon, Tae-Ho

doi:10.1007/s12257-016-0428-6

Cited by 12 publications

(17 citation statements)

References 29 publications

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“…Between the different light conditions, the highest phycocyanin content was obtained under LL, followed by NL, while HL gave significantly lower values. These results are in agreement with previous observations that both a reduction in the light quantity and change in light quality (light spectrum towards red) can induce an increase in the phycocyanin concentration in Arthrospira biomass. This observation can be explained by the capacity of chromatic adaptation of many cyanobacteria, including Arthrospira , in which cyanobacteria adjust their pigment composition in response to light alterations .…”

Section: Resultssupporting

confidence: 93%

“…Several studies have reported changes in the phycocyanin concentration in Arthrospira biomass under different light wavelengths generated by LED lights. These experiments, however, have yielded contrasting results: while some studies found the highest phycocyanin concentration under blue light illumination, others found a higher phycocyanin concentration under red light illumination . In these studies, phycocyanin concentrations of up to 175 mg g −1 have been reported …”

Section: Introductionmentioning

confidence: 94%

“…These experiments, however, have yielded contrasting results: while some studies found the highest phycocyanin concentration under blue light illumination, 16,23,24 others found a higher phycocyanin concentration under red light illumination. 25 In these studies, phycocyanin concentrations of up to 175 mg g −1 have been reported. 16,26 While previous studies have shown that coloured LED lights can be used to produce Arthrospira biomass that is enriched in phycocyanin, this method cannot be implemented in existing extensive outdoor production facilities due to the high cost of energy required for illumination with artificial lighting.…”

Section: Introductionmentioning

confidence: 96%

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Enhanced phycocyanin and protein content of Arthrospira by applying neutral density and red light shading filters: a small‐scale pilot experiment

Kilimtzidi

Cuéllar‐Bermúdez

Μάρκου³

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND The cyanobacterium Arthrospira contains proteins and the blue pigment phycocyanin that can be used as a natural colourant in the food industry. The aim of this study was to investigate a strategy for increasing the yield of phycocyanin and protein from Arthrospira cultures by shading the cultures with neutral density and red light filters. Experiments were conducted under three different irradiance conditions: (i) laboratory tests under relatively low light intensities (100 μmol m−2 s−1), (ii) laboratory tests under relatively high light intensities (516 μmol m−2 s−1) and (iii) scaled‐up tests under natural conditions by cultivating Arthrospira in raceway ponds in a greenhouse. RESULTS In all cases, shading of cultures with red filters resulted in biomass with increased phycocyanin content achieving a maximum of 134, 71 and 121 mg g−1 under low light intensity, high light intensity and natural conditions, respectively. Under high light intensity and natural conditions, shaded cultures displayed phycocyanin of higher purity and increased protein content, which reached up to 43 and 65%, respectively. CONCLUSIONS Shading of Arthrospira cultures by low‐cost polyester red light filters may be an effective way for enhancing phycocyanin production and improving its purity in outdoor ‘spirulina farms’. © 2019 Society of Chemical Industry

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Section: Resultssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 96%

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Enhanced phycocyanin and protein content of Arthrospira by applying neutral density and red light shading filters: a small‐scale pilot experiment

Kilimtzidi

Cuéllar‐Bermúdez

Μάρκου³

et al. 2019

J of Chemical Tech & Biotech

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“…Although it is known that PC has its maximum absorption peak in the red light range at 620 nm (Li et al, 2019), the results in the literature differ in the conclusions in terms of the quality of light required to increase PC content. Some authors report that red light (Walter et al, 2011;Yim et al, 2016;Kilimtzidi et al, 2019) and others that blue light (Akimoto et al, 2012;Markou 2014;Lee et al, 2016;Park & Dinh 2019) give higher increases. It has recently been suggested (Hsieh-Lo et al, 2019) that the effect of blue light to induce PC is due to the short wavelength of the blue light, which is not easily absorbed, demanding the production of PC as accessory pigment.…”

Section: Phycocyanin Induction Extraction and Analysismentioning

confidence: 99%

A novel two-phase bioprocess for the production of Arthrospira (Spirulina) maxima LJGR1 at pilot plant scale during different seasons and for phycocyanin induction under controlled conditions

García-López

Olguín

González-Portela

et al. 2020

Bioresource Technology

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A two-phase outdoor cultivation bioprocess for Arthrospira maxima LJGR1 combined with phycocyanin induction in concentrated cultures under controlled conditions, was evaluated using a modified low-cost Zarrouk medium. Growth was monitored during 4 cycles in 2018 and 4 cycles in 2019. Biomass was harvested and concentrated using membrane technology at the end of each cycle for further phycocyanin induction using blue LED light (controlled conditions, 24h). The highest biomass productivity was observed during spring and summer cycles; during mid-fall and mid-end fall, a decrease was observed.Under favorable growth conditions, phycocyanin induction was successful.However, during cycles with unfavorable growth condition, phycocyanin induction was not observed. Reagent grade phycocyanin was recovered and purified using microfiltration and ultrafiltration technologies. It was concluded that this novel two phase process has a potential to be implemented at larger scale within a biorefinery approach including the production of sub products from residual biomass and exopolysaccharides.

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“…Light quality effects the growth as well as biochemical properties of photosynthetic microalgae. There are various light sources, such as solar light [1], fluorescent lamps (FLs) [2], lightemitting diodes (LEDs) [3,4], have been used to produce the biomass and valuable biochemical components [5]. These light sources give information on the effects of wavelength and light intensity on microalgal growth and cell division in the culture system.…”

Section: Introductionmentioning

confidence: 99%

The Production of High Phycocyanin by Applications of Red Light-Emitting Diodes (LEDs) In Vitro Algae Growth on Spirulina platensis

Huynh¹,

Luong²,

Bien³

2021

J. Nano- Electron. Phys.

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Spirulina platensis are cultured at a large scale around the world primarily for providing food supplements for human as well as animal diets. Various light-emitting diodes (LEDs) with different light wavelengths are conducted to explore the positive effects of light source on photoautotrophic cultivation of Spirulina platensis in this study. From the experimental results, red LED max  632 nm exhibits the highest specific growth rate under continuous illumination (192,5 mol m -2 s -1 ). Among them, red LED light in experiment 2 is determined as the best light for biomass and phycocyanin, results present that algae grew up to the 7 th day and then the maximum density of biomass was 1.231 ± 0.0005 g L -1 , this developed cultivation takes 9 days, yielding 3.54 mg mL -1 C-phycocyanin with a purity of 2.0 gram from Spirulina platensis, followed by red LED in experiment 1, red LED in experiment 3 and white LED in control. This result is proposed to fit the specific growth rates of Spirulina platensis and high C-phycocyanin from red LED max  632 nm in the experiment 2 to determine this wavelength being important for algae growth with high C-phycocyanin. Hence, the information LEDS about the biopotential of this attractive alga for industrial application needs further research.

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Internally illuminated photobioreactor using a novel type of light-emitting diode (LED) bar for cultivation of Arthrospira platensis

Cited by 12 publications

References 29 publications

Enhanced phycocyanin and protein content of Arthrospira by applying neutral density and red light shading filters: a small‐scale pilot experiment

Enhanced phycocyanin and protein content of Arthrospira by applying neutral density and red light shading filters: a small‐scale pilot experiment

A novel two-phase bioprocess for the production of Arthrospira (Spirulina) maxima LJGR1 at pilot plant scale during different seasons and for phycocyanin induction under controlled conditions

The Production of High Phycocyanin by Applications of Red Light-Emitting Diodes (LEDs) In Vitro Algae Growth on Spirulina platensis

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